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United States Patent | 5,061,161 |
Tetu | October 29, 1991 |
A process and device for manufacturing a composite building panel of the type comprising a facing layer made from a plurality of facing elements, such as brick slices or stone slices for example, retained in a spaced apart relationship, and a magnetically attractible particulate material disposed between the facing elements to imitate mortar. A rigid backing layer is provided, spaced from the spacing layer, the space between the facing and backing layers being filled with an insulation/bonding layer. The device for use in manufacturing the building panel comprises a facing element holder in the form of a structure with a plurality of recesses for receiving therein facing elements, also including spacers between recesses in order to maintain the facing elements in a spaced apart relationship. Ceramic magnets are provided on the spacers for retaining temporarily thereto the particulate material against gravity, until the insulation/bonding layer is built which retains all the elements of the panel together.
Inventors: | Tetu; Bertrand (St-Agapit, CA) |
Assignee: | Panneaux Thermo-Briques, Inc. (Quebec, CA) |
Appl. No.: | 448670 |
Filed: | December 11, 1989 |
Current U.S. Class: | 425/3; 249/15; 249/16; 249/96; 249/112; 264/46.5; 264/261; 264/277; 264/427; 425/123 |
Intern'l Class: | B29C 033/16 |
Field of Search: | 425/3,123 249/15,16,18,96,112,134,91,93 264/24,35,256,261,277,46.5 |
3287782 | Nov., 1966 | McClarney | 425/3. |
3426490 | Feb., 1969 | Taylor | 249/15. |
3602476 | Aug., 1971 | Iragorri | 249/96. |
4191722 | Mar., 1980 | Gould | 249/96. |
Foreign Patent Documents | |||
865354 | Mar., 1971 | CA. | |
911194 | Oct., 1972 | CA. |